Development of a geographical information system for risk mapping of reinforced concrete buildings subjected to atmospheric corrosion in Cyprus using optical remote sensing data

Kyriacos Neocleous; Athos Agapiou; Andreas Christofe; Kyriacos Themistocleous; Zenon Achillides; Marilia Panayiotou; Diofantos G. Hadjimitsis

doi:10.1117/12.2066288

12 August 2014 Development of a geographical information system for risk mapping of reinforced concrete buildings subjected to atmospheric corrosion in Cyprus using optical remote sensing data

Kyriacos Neocleous, Athos Agapiou, Andreas Christofe, Kyriacos Themistocleous, Zenon Achillides, Marilia Panayiotou, Diofantos G. Hadjimitsis

Author Affiliations +

Proceedings Volume 9229, Second International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2014); 92291Q (2014) https://doi.org/10.1117/12.2066288
Event: Second International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2014), 2014, Paphos, Cyprus

Abstract

Concrete reinforced with steel rebars remains one of the most widely used construction materials. Despite its excellent mechanical performance and expected service life of at least 50 years, reinforced concrete is subjected to corrosion of the steel rebars which normally leads to concrete spalling, deterioration of the reinforced concrete’s (RC) mechanical properties and eventual reduction of the structural load capacity. In Cyprus, especially in coastal regions where almost 60% of the population resides, many structural problems have been identified in RC structures, which are mainly caused by the severe corrosion of steel rebars. Most RC buildings, located in coastal areas, show signs of corrosion within the first 15-20 years of their service life and this affects their structural integrity and reliability, especially against seismic loading. This paper presents the research undertaken as part of the STEELCOR project which aims to extensively evaluate the steel corrosion of RC buildings in coastal areas of Cyprus and conduct a risk assessment relating to steel corrosion. Non-destructive testing of corroded RC structures measurements were used to estimate the simplified index of structural damage. These indices were imported into a Geographical Information System to develop a digital structural integrity map of Cyprus which would show the areas with high risk of steel corrosion of RC buildings. In addition, archive optical remote sensing dataset was used to map the urban expansion footprint during the last 30 years in Cyprus with the aim of undertaking corrosion risk scenarios by utilizing the estimated indices.

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Kyriacos Neocleous, Athos Agapiou, Andreas Christofe, Kyriacos Themistocleous, Zenon Achillides, Marilia Panayiotou, and Diofantos G. Hadjimitsis "Development of a geographical information system for risk mapping of reinforced concrete buildings subjected to atmospheric corrosion in Cyprus using optical remote sensing data ", Proc. SPIE 9229, Second International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2014), 92291Q (12 August 2014); https://doi.org/10.1117/12.2066288

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KEYWORDS

Corrosion

Buildings

Geographic information systems

Remote sensing

Earth observing sensors

Landsat

Nondestructive evaluation

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